* configure.ac (plugin -rdynamic test): Log result.

[pf3gnuchains/gcc-fork.git] / gcc / configure.ac

diff --git a/gcc/configure.ac b/gcc/configure.ac
index ea1a040..2d78234 100644 (file)
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -2142,6 +2142,27 @@ if test $in_tree_ld != yes ; then
     ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
     ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
     ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
+  else
+    case "${target}" in
+      *-*-solaris2*)
+       #
+       # Solaris 2 ld -V output looks like this for a regular version:
+       #
+       # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1699
+       #
+       # but test versions add stuff at the end:
+       #
+       # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1701:onnv-ab196087-6931056-03/25/10
+       #
+       ld_ver=`$gcc_cv_ld -V 2>&1`
+       if echo "$ld_ver" | grep 'Solaris Link Editors' > /dev/null; then
+         ld_vers=`echo $ld_ver | sed -n \
+           -e 's,^.*: 5\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\1,p'`
+         ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
+         ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
+       fi
+       ;;
+    esac
   fi
 fi
 changequote([,])dnl
@@ -2462,7 +2483,7 @@ elif test $in_tree_ld = yes ; then
      && test $in_tree_ld_is_elf = yes; then
      comdat_group=yes
   fi
-elif test x"$ld_vers" != x; then
+elif echo "$ld_ver" | grep GNU > /dev/null; then
   comdat_group=yes
   if test 0"$ld_date" -lt 20050308; then
     if test -n "$ld_date"; then
@@ -2475,9 +2496,32 @@ elif test x"$ld_vers" != x; then
     fi
   fi
 else
-  # assume linkers other than GNU ld don't support COMDAT group
-  comdat_group=no
+changequote(,)dnl
+  case "${target}" in
+    *-*-solaris2.1[1-9]*)
+      # Sun ld has COMDAT group support since Solaris 9, but it doesn't
+      # interoperate with GNU as until Solaris 11 build 130, i.e. ld
+      # version 1.688.
+      #
+      # FIXME: Maybe need to refine later when COMDAT group support with
+      # Sun as is implemented.
+      if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 1688; then
+        comdat_group=yes
+      else
+        comdat_group=no
+      fi
+      ;;
+    *)
+      # Assume linkers other than GNU ld don't support COMDAT group.
+      comdat_group=no
+      ;;
+  esac
+changequote([,])dnl
 fi
+# Allow overriding the automatic COMDAT group tests above.
+AC_ARG_ENABLE(comdat,
+  [AS_HELP_STRING([--enable-comdat], [enable COMDAT group support])],
+  [comdat_group="$enable_comdat"])
 if test $comdat_group = no; then
   gcc_cv_as_comdat_group=no
   gcc_cv_as_comdat_group_percent=no
@@ -4405,10 +4449,13 @@ if test x"$enable_plugin" = x"yes"; then
     AC_MSG_CHECKING([for -rdynamic])
     ${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1
     if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+      plugin_rdynamic=yes
       pluginlibs="-rdynamic"
     else
+      plugin_rdynamic=no
       enable_plugin=no
     fi
+    AC_MSG_RESULT([$plugin_rdynamic])
   fi
 
   # Check -ldl